• Published on: May 17, 2022
  • 2 minute read
  • By: Second Medic Expert

Understanding Kidney Function Test

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A kidney function test is a blood or urine test that checks how well your kidneys are working. The kidneys remove waste products and excess fluid from the body. They also make hormones that control blood pressure, red blood cell production, and calcium levels.

Some common tests for kidney function include:

• Blood urea nitrogen (BUN) level

• Creatinine level

• Estimated Glomerular Filtration Rate (eGFR)

• Urinalysis

The main purpose of a kidney function test is to assess the level of creatinine and urea in the blood. These proteins are produced when muscle tissue is damaged, so their levels in the blood can be used to estimate how well the kidneys are filtering waste products from the blood.

The results of a kidney function test can help doctors diagnose conditions such as: renal failure, kidney infection, urinary tract infection, and dehydration. The test can also help doctors monitor people who have chronic kidney disease. Your doctor may order this test if you have a health problem that might be caused by your kidneys, such as high blood pressure, heart failure, diabetes, or an infection.

The main purpose of the kidneys is to clear wastes and toxins from the body. The kidneys also produce hormones that regulate blood pressure, red blood cell production, and calcium levels in the body. A kidney function test measures the following:

• Glomerular filtration rate (GFR) - This measures how well the kidneys are filtering wastes and toxins from the blood.

• Creatinine level - This is a waste product that is filtered out of the blood by the kidneys. A high creatinine level may indicate impaired kidney function.

• Blood urea

The kidneys remove waste products and excess fluid from the blood. They also make hormones that help regulate blood pressure, bone strength, and red blood cell production. The main purpose of a kidney function test is to find out how well your kidneys are working. The test can help doctors find and treat problems with the kidneys before they become serious. The main purpose of a kidney function test is to help diagnose and monitor renal diseases, such as chronic renal failure (CRF) and acute renal failure (ARF).

Your kidneys filter waste products and excess fluid from your blood. They also make hormones that help control blood pressure, red blood cell production, and the balance of minerals in your body. Damage or disease of the kidneys can interfere with any of these activities, leading to problems such as anaemia, high blood pressure, and bone weakness.

The kidneys filter wastes and excess water from the blood to make urine. Urine is then stored in the bladder and emptied through the urethra. The main job of the kidneys is to keep the balance of fluid and minerals (electrolytes) in the body. A kidney function test measures how much waste is in the blood and how well the kidneys are removing it. It also measures how well the kidneys are keeping electrolytes balanced. The most common type of kidney function test is a serum creatinine level. This measures the amount of creatinine in your blood. Creatinine is a by-product of muscle metabolism.

If your kidneys are not working properly, they cannot remove all the creatinine from your blood. This will cause the level of creatinine in your blood to rise. A high serum creatinine level may indicate that you have lost some kidney function.

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Heart Related Health Issues: Early Warning Signs You Should Not Ignore

Heart related health issues remain one of the leading causes of illness and death worldwide. Despite advancements in medical care, many heart conditions are diagnosed late because early symptoms are subtle, misunderstood or ignored. Understanding early warning signs of heart related health issues is crucial, as timely action can prevent life-threatening events such as heart attacks and strokes.

Public health data consistently shows that most cardiovascular events are preceded by warning signals that appear weeks, months or even years earlier. Recognising these signs allows for early intervention and better long-term outcomes.

 

What Are Heart Related Health Issues?

Heart related health issues include conditions that affect:

  • the heart muscle
     

  • coronary arteries
     

  • heart valves
     

  • electrical system of the heart
     

Common conditions include coronary artery disease, heart failure, arrhythmias and hypertension-related heart damage.

 

Why Heart Problems Often Go Unnoticed

Heart disease is often called a “silent killer” because:

  • symptoms develop gradually
     

  • early signs are mild
     

  • discomfort is mistaken for fatigue or indigestion
     

  • people delay medical evaluation
     

Unfortunately, waiting for severe pain or emergencies increases risk.

 

Early Warning Signs of Heart Related Health Issues

Chest Discomfort

Chest pain or discomfort is the most recognised warning sign, but it does not always feel severe.

It may present as:

  • pressure
     

  • tightness
     

  • heaviness
     

  • burning sensation
     

Chest discomfort may come and go and worsen with exertion.

 

Breathlessness

Shortness of breath during routine activities or at rest may indicate:

  • reduced heart pumping capacity
     

  • fluid buildup in lungs
     

Breathlessness is often an early sign of heart failure or coronary disease.

 

Unusual Fatigue

Persistent, unexplained fatigue can signal reduced blood supply to the body.

People may notice:

  • exhaustion after minimal activity
     

  • reduced stamina
     

  • prolonged recovery after exertion
     

Fatigue is frequently overlooked as stress or ageing.

 

Palpitations or Irregular Heartbeat

Feeling the heart race, flutter or skip beats may indicate rhythm disturbances.

Symptoms include:

  • rapid heartbeat
     

  • pounding sensation
     

  • irregular pulse
     

Some arrhythmias increase stroke risk if untreated.

 

Dizziness or Lightheadedness

Reduced blood flow to the brain can cause:

  • dizziness
     

  • fainting spells
     

  • imbalance
     

These symptoms may signal heart rhythm or blood pressure issues.

 

Swelling in Legs or Ankles

Fluid retention in lower limbs suggests:

  • weakened heart function
     

  • poor circulation
     

Swelling often worsens by evening and improves overnight.

 

Pain in Other Areas

Heart-related pain may radiate to:

  • left arm
     

  • neck
     

  • jaw
     

  • back
     

  • upper abdomen
     

This atypical pain is common and frequently misdiagnosed.

 

Symptoms That Are More Common in Women

Women may experience:

  • nausea
     

  • jaw pain
     

  • back pain
     

  • extreme fatigue
     

  • shortness of breath without chest pain
     

These non-classic symptoms often delay diagnosis.

 

Risk Factors for Heart Related Health Issues

Major risk factors include:

  • high blood pressure
     

  • diabetes
     

  • high cholesterol
     

  • smoking
     

  • obesity
     

  • sedentary lifestyle
     

  • chronic stress
     

  • family history
     

Risk increases when multiple factors coexist.

 

Why Early Detection Is Critical

Early diagnosis:

  • prevents heart attacks
     

  • reduces heart muscle damage
     

  • lowers hospitalisation risk
     

  • improves quality of life
     

Most heart conditions are manageable when detected early.

 

How Heart Problems Are Diagnosed

Evaluation may involve:

  • blood pressure measurement
     

  • blood tests
     

  • electrocardiogram (ECG)
     

  • imaging studies
     

  • stress testing
     

Tests are chosen based on symptoms and risk profile.

 

Treatment and Management

Medical Management

Depending on the condition:

  • medications
     

  • lifestyle changes
     

  • monitoring
     

Early treatment slows disease progression.

 

Lifestyle Modification

Lifestyle plays a major role in heart health:

  • balanced diet
     

  • regular physical activity
     

  • stress management
     

  • adequate sleep
     

  • smoking cessation
     

Lifestyle changes significantly reduce risk.

 

Preventive Measures for Heart Health

  • regular health checkups
     

  • blood pressure and sugar monitoring
     

  • cholesterol screening
     

  • physical activity
     

  • heart-healthy diet
     

Prevention is the most effective strategy against heart disease.

 

When to Seek Immediate Medical Help

Seek urgent care if:

  • chest pain is severe or persistent
     

  • breathlessness occurs suddenly
     

  • fainting happens
     

  • pain radiates to arm or jaw
     

Prompt action saves lives.

 

Long-Term Impact of Ignoring Warning Signs

Ignoring early symptoms may lead to:

  • heart attack
     

  • stroke
     

  • heart failure
     

  • permanent heart damage
     

  • sudden cardiac events
     

Delayed care increases mortality risk.

 

Conclusion

Heart related health issues rarely appear suddenly without warning. The body often sends early signals such as chest discomfort, fatigue, breathlessness and palpitations long before emergencies occur. Recognising these early warning signs and seeking timely medical evaluation can prevent serious complications and save lives. Heart health requires awareness, proactive care and early action—because when it comes to the heart, ignoring symptoms is a risk no one should take.

 

References

  • Indian Council of Medical Research (ICMR) – Cardiovascular Disease Report

  •  World Health Organization (WHO) – Cardiovascular Health Guidelines

  • National Heart Institute – Early Signs of Heart Disease

  • Lancet – Global Burden of Cardiovascular Disease Studies

  • Indian Journal of Cardiology – Heart Disease Detection and Preventio

  •  Statista – Heart Disease Trends and Risk Factors

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